Is there a setting that I change to only have one run per user show up in a category?

The issue right now is that I have a user who has 2 runs on a leaderboard because they ran the game first on normal, and then later on easy. Adding the difficulty was just supposed to be informational instead of actually effecting anything on the leaderboards. Am I missing a setting somewhere? It's been a few years since I initially set it up.

The variable should have a "values obsolete each other" setting, turn that on.

Thanks! That fixed the problem.